Avenger V6-2.7L (2008)
WARNING: The fuel system is under a constant pressure even with the engine off. Before testing or servicing any fuel system hose, fitting or
line, the fuel system pressure must be released. Failure to follow these instructions can result in personal injury or death.
Remove the fuel pump module and inspect the fuel inlet strainer for damage or a condition that might cause a fuel flow problem.
Were any problems found?
Yes
-
Replace the Fuel Pump Inlet Strainer.
-
Perform the PCM Verification Test.See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test
No
-
Replace the Fuel Pump Module.
-
Perform the PCM Verification Test.See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test
7. FUEL PUMP GROUND CIRCUIT OPEN OR HIGH RESISTANCE
Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Using a 12 volt test light connected to 12 volts, check the Fuel Pump Motor Ground circuit at the Fuel Pump Module harness connector.
NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
Is the test light illuminated and bright?
Yes
-
Replace the Fuel Pump Module.
-
Perform the PCM Verification Test.See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test
No
-
Repair the Fuel Pump Ground circuit for an open circuit or high resistance.
-
Perform the PCM Verification Test.See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test
NGC
*CHECKING THE FUEL DELIVERY SYSTEM
For a complete wiring diagram Consult Diagrams/Electrical.
Diagnostic Test
1. CHECKING THE FUEL PUMP OPERATION
Turn the ignition on.
NOTE: Diagnose and repair any fuel pump control circuit or relay DTCs before continuing with this test.
With a scan tool, actuate the fuel pump control to ON (100%).
NOTE: It may be necessary to use a mechanics stethoscope in the next step.
Listen for fuel pump operation at the fuel tank. The fuel pump should operate smoothly, without excessive noise. If necessary, compare to a known good
vehicle of similar year, make, and model.
NOTE: If the pump has excessive noise or grinding, the pump should be replaced.
CAUTION: Stop all actuation tests before continuing.
Is the fuel pump operating when actuated?
